angiotensinPronunciation: /ˌandʒɪə(ʊ)ˈtɛnsɪn/Definition of angiotensin noun [mass noun] Biochemistry a protein whose presence in the blood promotes aldosterone secretion and tends to raise blood pressure. Origin: 1950s: from angio- + (hyper)tens(ion) + -in1angiotensin in other Oxford dictionaries Definition of angiotensin in the US English dictionary
